Land-roller drum.



W. P. BUDLONG.

LAND ROLLER DRUM.

APPLICATION FILED JAN. 25, 1913.

Patented May 26, 1914.

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\OLUMBIA PLANOGRAPH CONWASHINGTON D. c.

llTltlD STATES PATENT OFFICE.

VVILBUR. F. BUDLGNG, 0F sAN JOSE, CALIFORNIA, ASSIGNOR TO THE DUNHAMCOMPANY, OF BEREA, OHIO, A CORPORATION OF OHIO.

LAND-ROLLER DRUM.

Be it known that I, YVILBUR F. BUDLoNe, a citizen of the United States,resident of San Jose, county of Santa Clara, and State of California,have invented a new and useful Improvement in Land-Roller Drums, ofwhich the following is a specification, the principle of the inventionbeing herein explained and the best mode in which I have contemplatedapplying that principle, so as to distinguish it from other inventions.

My invention relates to land rollers, its object being to provide acheaper, stronger and generally more eflicient construction thereof thanis now, in so far as I am aware, employed.

A specific object is to provide a cheap and efficient hub and spokeconstruction.

The said invention consists of means hereinafter fully described andparticularly set forth in the claims.

The annexed drawing and the following description set forth in detailcertain means embodying my invention, the disclosed means however,constituting but one of various mechanical forms in which the principleof the invention may be employed.

In said annexed drawing :-'Figure 1 is a vertical axial section of aland roller drum embodying my invention. Fig. 2 is a perspective view ofone of the spokes. .Fig. 3 is a perspective view on an enlarged scale ofone of the hubs of the roller. Fig. 4 is a de tail section, on anenlarged scale taken upon the plane indicated by line IVIV in Fig. 1.

The illustrated embodiment of my invention includes the usualcylindrical shell A provided with the inwardly projecting end flanges aa. Each hub 13 consists of a cast member having a central cylindricalbearing 6 and a circular flange Z). Upon this flange is formed aplurality of radially projecting members 6 b which preferably extendfrom the bearing portion of the hub to the periphery of the flange asshown in Fig. 8. The opposite sides 6 and 12* of each of these members 6converge outwardly as shown in Fig. 4:.

Each spoke C is of U-shaped cross-section and is hence provided with agroove 0. These spokes are preferably formed of standard channel-iron ofsuitable dimensions, and are of a length such that they reach from thebearing portion 6 of the hub to the inner surface of the shell A. asshown in Fig. 1.

Specification of Letters Patent.

Application filed January 25, 1913.

Patented May 26, 1914. Serial No. 744,265;

The opposite sides of the groove of each spoke are made to divergeoutwardly, and the inclination of the opposite sides 6 and b of themembers 6 with reference to each other, is made the same as theinclination of the opposite sides of said groove with reference tothemselves. hen the standard channel-iron is used such inclination ofthe grooves sides is of course incidental thereto. The cross-sectionalarea of each groove c is made slightly less than the cross-sectionalarea of the corresponding member 6 so that the latter may be caused toproject only partially within such groove, leaving a slight clearancespace between the contiguous outer face of said member and the bottom ofsaid groove, as well as a similar clearance space between the face ofthe flange and the contiguous parallel surface of the spoke, as shown inFig. 4. A suitable hole 0 is drilled through the inner end of each spokeand a registering hole 5 through the corresponding members and theadjacent portion of the flange. Similar holes are drilled in the outerends of the spokes and the contiguous port-ion of the flanges a a of theshell.

In assembling the above described parts the spokes are placed upon thehub so as to cause the members 6 to project, as described, within thegroove, whereupon rivets are passed through the registering holes andsuitably secured. The outer ends of the spokes are secured by similarrivets to the flanges a. During such assembling the hubs are placed in aposition such that the pro jecting members Z2 will be located on theoutside face thereof as shown. The assembled hubs, spokes andflanges arethen each inserted in the opposite ends of the shell A and secured bysuitable rivets a" passing through countersunk holes formed in the shellas shown in Fig. 1.

By means of the above described construction I obtain a simple andefficient means of securing the hubs and spokes to each other, the casthub being plain and simple in form whereby the pattern for casting suchhub is of a form which will insure clean contact surfaces requiring nomachining. The memhere 6 being of the tapered form shown per mit suchpattern to be readily drawn from the mold, and these members furthermoreimpart rigidity and strength to the flanges Z). Furthermore, the taperedconstruction of the members 6 and the grooves of the spokes, permitsthese parts to be drawn to gether during the riveting operation so as toWedge, thereby securing a tight secure and permanent joint between thespokes and hub.

Having fully described my invention, what I claim and desire to secureby Letters Patcut is 1. In a land roller, the combination with a hubformed with radially disposed projecting members each having itsopposite sides converging in an outward direction; of spokes each formedwith a channel having outwardly diverging opposite sides, and secured tosaid hub; said members being located in said channels respectively.

2. In a land roller, the combination with a hub formed with radiallydisposed projecting members each having its opposite sides converging inan outward direction; of spokes each formed with a channel havingoutwardly diverging opposite sides, and secured to said hub; saidmembers being 10- cated in said channels respectively; thecross-sectional area of each such channel being less than thecross-sectional area of the corresponding proj ecting-members.

3. In a land roller, the combination of a hub formed with radiallydisposed projecting members each having its opposite sides converging inan outward direction; spokes each formed with a channel having outwardlydiverging opposite sides; said members being located in said channelsrespectively; and rivets passing through said channels and projectionsfor securing the said spokes to the hub; the cross-sectional area ofeach such channel being less than the cross-sectional area of thecorresponding projecting-members.

Signed by me this 11th day of January 1913.

WVILBUR F. BUDLONG.

Attested by- M. J. HANNUM, EMMA I. BUDLONG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

